Question
The molecules of a given mass of a gas have r.m.s. velocity of 200 m/s at 27o C and 1.0 x 105 Nm-2 pressure. When the temperature and pressure of the gas are respectively, 127o C and 0.05 x 105 Nm-2, the RMS velocity of its molecules in m/s is,
Solution
A.
It is given that,
vrms = 200 m/s
T1 = 300 K
P1 = 105 N/m2
rms velocity of gas molecules, vrms 
For two different cases,
